testing/test-cases/crt-old-mac10.6-vars-libSystem.dtest/main.c

   1 // BUILD(macos|x86_64):  $CC main.c    -mmacosx-version-min=10.6 -o $BUILD_DIR/crt-vars10.6-libSystem.exe
   2
   3 // BUILD(ios,tvos,watchos,bridgeos):
   4
   5 // RUN:  ./crt-vars10.6-libSystem.exe
   6
   7 #include <stdio.h>
   8 #include <dlfcn.h>
   9 #include <string.h>
  10 #include <crt_externs.h>
  11 #include <mach-o/ldsyms.h>
  12
  13 #include "test_support.h"
  14
  15 // This struct is passed as fifth parameter to libSystem.dylib's initializer so it record
  16 // the address of crt global variables.
  17 struct ProgramVars
  18 {
  19     const void*        mh;
  20     int*               NXArgcPtr;
  21     char***            NXArgvPtr;
  22     char***            environPtr;
  23     char**             __prognamePtr;
  24 };
  25
  26
  27 // global variables defeined in crt1.o
  28 extern char**  NXArgv;
  29 extern int     NXArgc;
  30 extern char**  environ;
  31 extern char*   __progname;
  32
  33
  34 static const struct ProgramVars* sVars;
  35
  36 void __attribute__((constructor))
  37 myInit(int argc, const char* argv[], const char* envp[], const char* apple[], const struct ProgramVars* vars)
  38 {
  39     sVars = vars;
  40 }
  41
  42
  43 int main(int argc, const char* argv[])
  44 {
  45     if ( _NSGetArgv() != &NXArgv ) {
  46         FAIL("crt-libSystem: _NSGetArgv() != &NXArgv (%p!=%p) for %s", _NSGetArgv(), &NXArgv, argv[0]);
  47     }
  48
  49     if ( _NSGetArgc() != &NXArgc ) {
  50         FAIL("crt-libSystem: _NSGetArgc() != &NXArgc (%p!=%p) for %s", _NSGetArgc(), &NXArgc, argv[0]);
  51     }
  52
  53     if ( _NSGetEnviron() != &environ ) {
  54         FAIL("crt-libSystem: _NSGetEnviron() != &environv (%p!=%p) for %s", _NSGetEnviron(), &environ, argv[0]);
  55     }
  56
  57     if ( _NSGetProgname() != &__progname ) {
  58         FAIL("crt-libSystem: _NSGetProgname() != &__progname (%p!=%p) for %s", _NSGetProgname(), &__progname, argv[0]);
  59     }
  60
  61     if ( _NSGetMachExecuteHeader() != &_mh_execute_header ) {
  62         FAIL("crt-libSystem: _NSGetMachExecuteHeader() != &_mh_execute_headerv (%p!=%p) for %s", _NSGetMachExecuteHeader(), &_mh_execute_header, argv[0]);
  63     }
  64
  65     if ( sVars->NXArgvPtr != &NXArgv ) {
  66         FAIL("crt-libSystem: sVars->NXArgvPtr != &NXArg (%p!=%p) for %s", sVars->NXArgvPtr, &NXArgv, argv[0]);
  67     }
  68
  69     if ( sVars->NXArgcPtr != &NXArgc ) {
  70         FAIL("crt-libSystem: sVars->NXArgcPtr != &NXArgc (%p!=%p) for %s", sVars->NXArgcPtr, &NXArgc, argv[0]);
  71     }
  72
  73     if ( sVars->environPtr != &environ ) {
  74         FAIL("crt-libSystem: sVars->environPtr != &environ (%p!=%p) for %s", sVars->environPtr, &environ, argv[0]);
  75     }
  76
  77     if ( sVars->__prognamePtr != &__progname ) {
  78         FAIL("crt-libSystem: sVars->__prognamePtr != &__progname (%p!=%p) for %s", sVars->__prognamePtr, &__progname, argv[0]);
  79     }
  80
  81     if ( sVars->mh != &_mh_execute_header ) {
  82         FAIL("crt-libSystem: sVars->mh != &_mh_execute_header (%p!=%p) for %s", sVars->mh, &_mh_execute_header, argv[0]);
  83     }
  84
  85     PASS("Success");
  86 }
  87